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Exercise Tolerance in Patients Treated With a Durable Left Ventricular Assist Device: Importance of Myocardial Recovery

Publikation: Bidrag til tidsskriftReviewpeer review

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Vis graf over relationer

The number of patients supported with left ventricular assist devices (LVADs) is growing and support times are increasing. This has led to a greater focus on functional capacity of these patients. LVADs greatly improve heart failure symptoms, but surprisingly, improvement in peak oxygen uptake (pVO2) is small and remains decreased at approximately 50% of normal values. Inadequate increase in cardiac output during exercise is the main responsible factor for the low pVO2 in LVAD recipients. Some patients experience LV recovery during mechanical unloading and these patients have a higher pVO2. Here we review the various components determining exercise cardiac output in LVAD recipients and discuss the potential impact of cardiac recovery on these components. LV recovery may affect several components, leading to improved hemodynamics during exercise and, in turn, physical capacity in patients with advanced heart failure undergoing LVAD implantation.

OriginalsprogEngelsk
TidsskriftJournal of Cardiac Failure
Vol/bind27
Udgave nummer4
Sider (fra-til)486-493
Antal sider8
ISSN1071-9164
DOI
StatusUdgivet - apr. 2021

Bibliografisk note

Copyright © 2020 Elsevier Inc. All rights reserved.

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